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【单选题】
近年来,我国海域赤潮频繁发生,给当地渔业造成了重大损失。赤潮直接威胁着人类的生存环境,已经成为我国目前主要的海洋灾害之一。下列关于赤潮发生原因的叙述中,正确的是( )
A.
赤潮的发生说明海洋生态系统失去了自动调节能力
B.
赤潮发生的根本原因是含氟制冷剂大量使用导致臭氧层破坏的结果
C.
工业废水、城市生活污水直接排入大海,导致某些浮游生物爆发性繁殖是赤潮发生的直接原因
D.
空气中的二氧化碳浓度升高,导致海洋温度升高,引发了赤潮的发生
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参考答案:
举一反三
【单选题】All of the following regarding current ratio are true except:
A.
Current ratio is calculated by dividing current assets by current liabilities.
B.
Current ratio helps to assess a company's ability to pay its debts in the near future.
C.
Current ratio does not affect a creditor’s decision on when to allow a company to buy on credit.
D.
Current ratio can affect a creditor's decision about whether to lend money to a company.
E.
Current ratio can reveal problems in a company if it is less than 1.
【单选题】Which of the following statements best defines the current ratio?
A.
The ratio of current assets to current liabilities For the majority of businesses it should be at least 2.
B.
The ratio of current assets to current liabilities For the majority of businesses it should be at least 1.
C.
The ratio of current assets excluding inventory For the majority of businesses it should be at least 1.
D.
The ratio of current assets excluding inventory to current liabilities For the majority of businesses it should be at least 2.
【单选题】All of the following regarding current ratio are true except:
A.
Current ratio helps to assess a company's ability to pay its debts in the near future.
B.
Current ratio is calculated by dividing current assets by current liabilities
C.
Current ratio does not affect a creditor’s decision on when to allow a company to buy on credit.
D.
Current ratio can reveal problems in a company if it is less than 1.
【单选题】乙型溶血性链球菌生长时,菌落周围常出现的溶血环是
A.
α溶血
B.
β溶血
C.
γ溶血
D.
不溶血
【单选题】乙型溶血性链球菌生长时,菌落周围常出现的溶血环是( )
A.
a 溶血
B.
β溶血
C.
γ溶血
D.
δ溶血
E.
e 溶血
【单选题】乙型溶血性链球菌生长时,菌落周围常出现的溶血环是
A.
α溶血
B.
β溶血
C.
γ溶血
D.
δ溶血
【单选题】乙型溶血性链球菌生长时,菌落周围常出现的溶血环是
A.
α溶血
B.
β溶血
C.
γ溶血
D.
δ溶血
E.
ε溶血
【判断题】输尿管软镜只能做上尿路结石的治疗
A.
正确
B.
错误
【简答题】根据戴尔的 “经验之塔”理论,电视节目提供给我们的是
【单选题】All of the following regarding current ratio is true except
A.
Current ratio is calculated by dividing current assets by current liabilities.
B.
Current ratio helps to assess a company's ability to pay its debts in the near future.
C.
Current ratio does not affect a creditor’s decision on when to allow a company to buy on credit.
D.
Current ratio can affect a creditor's decision about whether to lend money to a company.
E.
Current ratio can reveal problems in a company if it is less than 1.
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